SESK: Stuff Everyone Should Know · sesk.info/hike-phone-airplane-mode
Why do rangers suggest airplane mode for your phone on a trail with poor signal?
Searching for a signal drains the battery fast. Save power for when you need it.
- It makes GPS more accurate
- It is required in parks
- Hunting for a signal drains the battery ✔
Why: A phone keeps searching for a tower when coverage is weak, and that uses up battery quickly. Rangers say keep it charged and switch it off or to airplane mode.
Huh, didn't know that: Great Smoky Mountains National Park says cell service there is extremely limited.
My phone went into airplane mode on the trail. It still did not take off.
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References
Answer: Hunting for a signal drains the battery. A phone keeps searching for a tower when coverage is weak, and that uses up battery quickly. Rangers say keep it charged and switch it off or to airplane mode.
- NPS: Hike Smart www.nps.gov/articles/hiking-safety.htm
Searching for a cell signal can quickly drain your phone battery
Checked 2026-10-12. - NPS Great Smoky Mountains: Hiking Safety www.nps.gov/grsm/planyourvisit/hikingsafety.htm
If you only have a cell phone, use airplane mode to prevent your battery from quickly draining.
Checked 2026-10-12.
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